Do you need an overview of Leave benefits, regarding the military leave policy eligibility by appointment type? Have a look at this document.
Eligibility for military leave benefits ends when the employment contract ends unless the employee would have received another consecutive appointment if not on active military duty. If there is an established pattern of consecutive terminal appointments, the employer should make a reasonable determination of whether the employee would have received another consecutive terminal appointment if he or she were not on active duty and, if possible, renew the appointments prior to the beginning of the military leave.
In cases where the intent is not to renew the appointment in absence of the military duty, incumbents should be notified prior to reporting for active duty. If the incumbent has a back-up appointment, he or she should be placed in the backup appointment prior to military leave, if possible.
Check out the eligibilty by appointment type of leave benefit here.